Calendars, to-do lists, journal entries, and contacts, synced over the open CalDAV and CardDAV standards nearly every client already speaks: Radicale is a small pure-Python server that works with Thunderbird, DAVx5 on Android, Apple Calendar and Contacts, GNOME, and many more. Its defining design choice is radical simplicity: there is no database. Events live as plain .ics files and contacts as .vcf files in an ordinary folder structure, which makes backup a copy command, migration a move, and disaster recovery a matter of reading text files. The server works out of the box with no complicated setup, then grows as needed: flexible authentication (htpasswd files among other methods), per-collection authorization rules, TLS-secured connections, and a plugin system for extending storage, auth, and rights handling. Built-in limits on parallel connections, file sizes, and failed authentication attempts harden it for network exposure behind a reverse proxy. A bundled web interface handles creating and managing calendars and address books - useful since many clients cannot create collections themselves. Maintained since 2011 with 140+ contributors, GPLv3-licensed, and light enough to run on the smallest VPS or a Raspberry Pi.

A handful of cheap servers in different countries become one routed network with a browser dashboard on top. Nodes link directly through Hysteria 2 QUIC tunnels with no coordination server, and traffic can leave through any node, several hops deep. The overview dashboard, topology graph, node list, and world map show latency, uptime, and live rates for every peer. Each node can also serve SOCKS5, HTTP, Shadowsocks, Trojan, L2TP/IPsec, IKEv2, OpenVPN, and WireGuard clients, and the VPN servers run in userspace without extra privileges. Policy sets route traffic by user, source, destination, domain, country, or ASN, and each user can get a fixed exit, quality failover, or aggregated paths. Traffic limits with periodic resets, upload and download rate caps, and expiry dates control how much each account can use. Hole punching connects nodes behind NAT, and peers can carry several addresses. A built-in certificate authority manages TLS certificates. An audit log records every connection, and ping, traceroute, throughput tests, and a terminal sit on the Tools page. Backup and restore, signed in-app upgrades, and an interface in English, Chinese, and Korean round out the admin side. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-3.0 licensed.

One article should not require a subscription, an account, and your tracking consent. 13ft is a self-hosted alternative to the defunct 12ft.io that fetches web articles the way a search-engine crawler receives them, then shows you the clean page without paywall walls, ad clutter, and pop-up nonsense attached. Paste a link into the single input, or better, install the companion bookmarklet: one click on any article page rewrites the address to your own server, and the reading copy comes back from infrastructure you control. Because it is yours, there is no third-party service logging every article you read, no central site that can be taken down and strand the habit, and nobody selling a premium tier of unblocking. It handles the stubborn cases with a loading page and multiple fallback retrieval methods that kick in when the first approach fails, ships localised interface strings in several languages, and the whole thing is one small application that runs from a container and sits politely behind a reverse proxy. Casual readers reclaim the occasional long-form piece; researchers and archivists get a reproducible way to fetch the same copy a search index saw. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Moving a 40 GB video from your laptop to three colleagues takes a shared link instead of a cloud upload when FileSync sends it from one device to many in real time, straight between browsers, from a server you host yourself. Open a room, share its link or QR code, and everyone inside can send, receive, and download everything as a zip. The files travel directly between browsers over encrypted connections while the server only introduces the devices to each other, so your documents never sit on someone else's disk. A verification key rides inside the link itself and is never sent to the server, proving the person who joined is the person you invited. Transfers stream to disk as they arrive, so file size is limited by storage rather than memory, and every file is checked with SHA-256 the moment it lands. Close a tab mid-transfer and the download resumes from the last saved byte instead of starting over. You can send whole folders, paste straight from your clipboard, and coordinate through the built-in room chat while the files move. When two devices cannot connect directly, the included relay carries the traffic automatically, and rooms can ask for a password before anyone joins. Recipients need no account and install nothing; they open the link in any modern browser and start receiving. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

The ad-riddled "free online tools" sites people paste sensitive text into and upload confidential PDFs to - OmniTools replaces that whole ecosystem with one self-hosted app. It bundles 50+ utilities behind one clean React/TypeScript interface: image tools (resize, convert, crop, edit), video and audio tools (trim, reverse, convert), PDF tools (split, merge, edit), text and list utilities (case converters, formatters, shufflers), plus date/time, math, and data-format helpers for JSON, CSV, and XML. The architectural decision that makes it trustworthy is that all file processing happens entirely client-side in the browser - the server only serves static assets, and nothing you process ever leaves your device. That design has a pleasant side effect: the host needs almost no resources (people run it on a Raspberry Pi Zero), because your browser does the work while the server just delivers files. The Docker image is a remarkable 28 MB, making it one of the fastest apps to deploy and cheapest to keep running. There are no ads, no tracking, no accounts, and no upload limits. With multi-language support and an MIT license, it works equally well as a personal toolbox or a team-wide internal utility portal - one URL that replaces a bookmark folder full of questionable converters. Actively developed with 50 contributors and 9,500+ GitHub stars.

Mailflow gathers every mailbox you own, the work account, the personal one, and the address stranded at a provider you left years ago, into one unified inbox hosted on your own server. All accounts merge into a single stream sorted by date, then sort themselves into Primary, Newsletters, Social, Notifications, and Other tabs, with a reclassify button for the ones that land wrong. Conversations group into threads, one click unsubscribes from detected newsletters, and full-text search reaches across every connected account at once. Writing mail gets a proper editor with formatting, tables, emoji, attachments, and smart address completion that learns from what you send, while inbox rules and a block list quietly move, archive, star, or trash messages by sender, subject, or content before you ever see them. New mail arrives with real-time toasts and push notifications, the interface installs as an app, speaks eleven languages, and can be reshaped with layouts, themes, and your own CSS. Accounts stay protected with two-factor authentication and single sign-on, contacts sync out over CardDAV, and an optional AI assistant can summarize a thread or draft the reply you are avoiding. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Hister is a private search engine for everything you have read or saved, indexing the full text of visited pages, local files, and imported browser history so one query finds the page you only half remember. Firefox and Chrome extensions capture each page as you browse, while a crawler and importers for browser history and bookmarks backfill earlier reading. Watched directories add local files to the same collection. Queries accept field filters, quoted phrases, wildcards, negation, date ranges, and aliases, with a readable stored preview beside each result. Opt-in semantic search matches documents by meaning through an Ollama, llama.cpp, or OpenAI-compatible embeddings endpoint. The same index answers in the browser, a terminal interface, the command line, an HTTP API, and an MCP server for AI assistants. Multi-user mode gives each person separate documents, rules, and access tokens, with password or OAuth sign-in, and public mode lets anonymous visitors search a curated index. Rebuild a research trail, recover a half-remembered article, or share one searchable knowledge base, with no telemetry. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Credentials sitting forever in email threads and chat scrollback - Password Pusher solves that everyday security failure. Instead of pasting a password into Slack, you push it - a password, note, file, URL, or QR code - and share a unique one-time link that expires after a set number of views, a time limit, or both. Content is encrypted at rest with AES-GCM under a configurable master key, optionally guarded by a passphrase, and permanently deleted from the database the moment it expires; a retrieval-step option keeps URL-scanning bots from consuming views. Full audit logs record when each link was created and viewed (and by whom, with logins), and TOTP two-factor authentication can be required instance-wide. The delivery page is deliberately unbranded - no logos or confusing links for recipients - and the interface ships in 31 languages with light and dark themes. Automation runs through a JSON API (v2), an official CLI for pushing and expiring secrets from the terminal, a Chrome extension, and a catalog of third-party integrations. Apache-2.0 licensed Ruby on Rails, deployable via Docker, Kubernetes, or Helm, with SQLite or PostgreSQL storage - the sysadmin staple for sending credentials that clean up after themselves.

Merge, split, compress, convert, edit, annotate, redact, OCR, and sign PDFs - BentoPDF packs over 130 tools into a privacy-first toolkit that runs entirely in the browser through WebAssembly. Files are never uploaded - processing happens in browser memory on the user's machine and disappears when the tab closes, which makes the tool GDPR-clean by architecture and safe for financial, legal, and internal documents. The engine combines WASM builds of PyMuPDF, Ghostscript, and CoherentPDF; Tesseract handles OCR with searchable text-layer output; Office conversions cover Word, Excel, and PowerPoint; and digital signatures use X.509 certificates (PFX/PEM) with the private key staying on the client. Because there is no server-side processing, deployment is a static-file exercise: a single Docker container, or any static host. A dedicated self-hosted build strips the marketing pages while keeping every tool, and air-gapped deployments are first-class - an automated script bundles the WASM modules, OCR language data, and fonts for fully offline networks. No accounts, no limits, no watermarks; TypeScript and Vite under the hood.

Crypto portfolio tracking that inverts the SaaS model: rotki runs on your own machine, needs no email or account for the free tier, and keeps every wallet address, balance, transaction, and tax event in a local SQLCipher database encrypted with 256-bit AES. By default nothing passes through rotki-operated servers - a design choice that matters when cloud portfolio trackers concentrate exactly the identity-linked holdings data attackers want. Centralized exchanges (Kraken, Binance, Coinbase, Bitstamp, and more) connect through read-only API keys that can see but never withdraw; blockchain accounts cover Ethereum and its L2s, Bitcoin, Solana, Polkadot, and Kusama, with ENS resolution and your choice of RPC endpoint or your own node. rotki decodes on-chain transactions into readable events across major DeFi protocols - Aave, Uniswap, Compound, Curve, Lido - and generates profit-and- loss reports for tax season with customizable accounting settings, including FIFO, LIFO, and HIFO cost-basis methods, plus CSV imports for defunct exchanges. Optional premium sync is zero-knowledge, encrypting the database on-device before upload. AGPLv3-licensed and multiplatform, with a Docker package for server deployment.

Your router calls it "Unknown device" at 192.168.1.23; Vedetta calls it the kitchen light and shows its work. Vedetta is a Home Assistant app that scans your local network, identifies what each device actually is, and explains every identification. One scan lists every device it can find with presence and latency history, in tile or list view, light or dark, on a computer or a phone. Behind each name sits the recognition engine: it weighs many weak clues together, counts a repeated fact once, groups devices by family, and shows certainty honestly, keeping anything doubtful in Other rather than inventing a label. Tap the info marker beside a name, brand, or type and a pop-up lists every clue, its weight, and the hypotheses that were rejected. Names or rooms you set by hand are never overwritten by later scans, and sleeping phones are remembered instead of flickering in and out. Choose from three search levels depending on how hard you want it to probe, let the nightly deep search refresh the picture, and use the network doctor to spot duplicate addresses, repeated restarts, devices that drop together, or a slowing gateway. It can also publish what you choose to Home Assistant and MQTT, display devices from other networks your Home Assistant already sees, and mask exports before they leave the machine. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

With over 8,000 GitHub stars and continuous development since 2020, LibrePhotos delivers the core intelligence of Google Photos — face recognition, object detection, semantic search, and automatic album generation — entirely on your own hardware without sending a single photo to a third-party server. The Django 5 backend processes uploaded media through a machine learning pipeline that runs face detection via the face_recognition library, clusters identified faces using scikit-learn and HDBSCAN, generates image captions through BLIP and Moondream 2, and classifies scenes using Places365 or Google's SigLIP 2 vision-language model with zero-shot classification against 900+ real-world tags. Semantic search lets you find photos by natural language queries like "sunset at the beach" without manual tagging, while metadata search filters by person, camera, lens, file type, and filesystem path. The React 18 frontend built with Vite presents a timeline view, fullscreen lightbox with slideshow mode, photo detail sidebar showing location and people, and a folder navigation view with breadcrumb paths. RAW files from any camera are converted via ImageMagick, videos processed through FFmpeg, and Live Photos paired with their RAW+JPEG counterparts as unified entries. Public album sharing via link provides fine-grained privacy controls, and duplicate detection uses perceptual hashing to identify near-identical images. Deployment runs as a single unified Docker container or via Docker Compose with Kubernetes manifests also available. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

With over 3,800 GitHub stars and continuous development since 2002 spanning 24 years of active maintenance through version 16.4.0 released in May 2026, Piwigo has proven itself as one of the most battle-tested self-hosted photo gallery platforms available, trusted by professional photographers managing 150,000+ high-resolution images alongside small teams sharing event photos. The PHP backend with MySQL or MariaDB storage serves a responsive web interface that organizes photos into hierarchical albums with nested sub-albums, tag-based categorization, and smart albums generated dynamically from search criteria. Batch management tools handle bulk uploads, metadata editing, tag assignment, and album moves across thousands of images simultaneously. User permission controls define access at the album level with configurable public, private, and group-restricted visibility, while guest access allows public galleries without authentication. Image processing via ImageMagick or PHP GD generates multiple thumbnail sizes, watermarks, and responsive derivatives automatically. The plugin ecosystem with over 200 community-built extensions adds functionality from EXIF metadata display and GPS mapping to social sharing, download controls, and Lightroom synchronization for desktop workflow integration. The REST Web API with personal API key authentication enables programmatic album creation, photo uploads, and metadata queries from external applications. Mobile apps for iOS and Android provide on-the-go upload and browsing capability. Docker deployment via the official container or traditional LAMP installation on any hosting provider. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-2.0 licensed.

Some messages should only arrive if you cannot send them yourself, and Aeterna is a self-hosted dead man's switch that makes sure they do. You write the messages, attach the files that matter, name the people who should receive them, and check in on a rhythm you choose. Keep checking in and nothing happens. Stop, and Aeterna delivers what you left behind. Each switch pairs your words with documents, photos, or instructions for specific recipients, and switches can address multiple recipients so one message can reach a partner, a sibling, and a lawyer at the same time. File attachments are stored encrypted and are automatically deleted from the server right after delivery, so sensitive material does not linger once it has done its job. Check-ins take seconds through the web interface or a quick link in your email, which keeps the heartbeat habit painless. When a switch fires it can also call webhooks, triggering home automation or custom scripts alongside the emails. Your SMTP settings live in the settings screen with live testing, and reverse proxy templates for Nginx, Traefik, and Caddy help you put the service behind your own domain with proper certificates. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-3.0 licensed.

Only the person holding the link can open what you share with SkySend, a self-hosted file and note sharing service that encrypts everything in the browser before it leaves your device. Sending a contract? Drop in the file, several files, or a whole folder, and share the link. Need documents from a client? Send an upload link instead, and whatever comes back is encrypted for you alone. Handing over a password or an SSH key? Write it into a note that burns after reading. Notes can mix text, Markdown, generated passwords, and highlighted code in a single page. Every share can expire by time, stop after a set number of downloads or views, and carry an optional password as a second lock. The command-line client uploads, downloads, and reads notes with the same encryption, and its full-screen mode shows each link as a QR code. No accounts are needed: My Links keeps your shares in the browser, and optional OIDC sign-in limits who may create them. Encrypted uploads sit on local disk or any S3-compatible bucket, and the interface offers 13 languages and three themes. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Real-time alerts from your own infrastructure to your phone, with no Firebase, Pushover, or third-party push service in the path: Gotify is a simple, self-hosted notification server written in Go. The model is deliberately minimal: senders push messages with a single HTTP POST to the REST API, receivers subscribe over a WebSocket stream, and a clean React web UI manages the pieces. Senders are namespaced as "applications," each with its own token, so your backup script, Uptime Kuma, CI pipeline, and cron jobs each get an identity, an icon, and independently revocable credentials - centralized alerting from many services with per-source management. Messages carry a title, body, and priority level that maps to notification importance on the client. The official Android app (on both F-Droid and Google Play, notable for working entirely without Google Play Services) shows push notifications for new messages; the web UI itself supports Web Push in the browser; and gotify/cli pushes messages from shell scripts with one command. A server-side plugin system adds custom behavior, and the whole thing runs as a single small binary with SQLite by default - near-zero resource footprint. Because dozens of tools (and Apprise) speak Gotify natively, it slots in as the notification hub for an entire homelab or ops stack.

Up to 280 search services - Google, Bing, DuckDuckGo, Brave, Qwant, Startpage - aggregated without tracking or profiling: SearXNG is a privacy-respecting metasearch engine (AGPL-3.0, successor to Searx). Your instance queries the upstream engines on your behalf: your IP address, cookies, and search history never reach them, tracker parameters are stripped from result URLs, and an optional image proxy fetches thumbnails server-side so result pages leak nothing. It can even route outbound queries through Tor for full anonymity. Search is organized into categories - general, images, videos, news, maps, music, IT, science, files - with bang shortcuts for targeting specific engines, and every source can be enabled, disabled, or weighted per category in settings.yml. A plugin system adds calculators, hash tools, tracker removal, and unit conversions inline, and preferences (themes, safe search, languages, engine selection) persist in cookies rather than server-side accounts. The real argument for running your own instance rather than trusting a public one is control: you decide the logging policy (none), the engine mix, rate limiting, and who gets access - making it the default search backend for browsers, families, and teams that want Google-quality results without the profile.

Give every website its own email address and your real inbox stays yours alone with AnonAddy, a private email forwarding service where [email protected] and [email protected] land in one inbox and hide the real address behind them. Create aliases on the fly from your username, generate random character or random word aliases that cannot be linked back to you, and label each one so you know exactly which site handed it out. When an alias starts attracting spam, deactivate it to silently discard mail or delete it so senders get a bounce, and the rest of your addresses keep working untouched. Reply to forwarded mail or start new conversations from the alias itself, so recipients never learn your real address. Attach your own domain or subdomain with MX records and make any address on it, add GPG or OpenPGP encryption so forwarded mail arrives encrypted, and strip tracking pixels before messages reach your client. Rules act on matching mail by blocking senders, changing recipients, rewriting subjects, or firing webhooks, and a REST API plus browser extension and Bitwarden integration create aliases right where you sign up. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.